Improvement in curtain-roller and bracket



W. B. NOYES. Curtain Roller and Bracket.

No. 208,417. Patented Sept. 24, 1878.

WIT SSES- 4, 1

' Q ATTORNEYS UNITED STATES PATENT FFIcE.

WALTER B. NOYES, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN CURTAIN-ROLLER AND BRACKET.

Specification forming part of Letters Patent No. 208,417, datedSeptember 24, 1878; application filed July 25, 1878.

To all whom it may concern:

Be it known that I, WALTER B. NOYES, of Boston, in the county ofSuffolk, and in the State of Massachusetts, have invented certain newand useful Improvements in Spring-Gurtain Rollers and Fixtures; and dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a spring curtain roller and fixtures, to be used either as abalance-curtain or a stop-curtain, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertainsto make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in whichFigure l is a longitudinal section of my curtain-roller. Fig. 2 is aperspective view of a ferrule used therein. Fig. 3 is a View of one endpiece for the roller when used as a balance curtain-roller. Fig. 4 is aperspective View of the curtain-bracket.

A represents a hollow curtain-roller, to which the curtain is to besecured in any suitable manner.

One end of the hollow roller is closed by a head, B, which is fastenedby a nail or otherwise, and has in the center a projecting pivot, b, torest in a socket, a, formed on the bracket 0, secured to thewindow-frame in the usual manner.

In the opposite end of the roller is inserted a plug, D, which issuitably secured therein. The inner end of the plug is formed with aconical recess, as shown in Fig. 1, and on its outer end is formed around tenon or projection, d, on which is placed and secured the pulleyE by any convenient means.

Through the pulley E and plug D is passed a spindle, F, the inner end ofwhich is inserted in the end of a wooden shaft or spindle, G, placedinside of the hollow roller A. In this roller is placed a loose collar,H, capable of rotation on the shaft, and also of lengthwise movementthereon.

I represents a spiral spring placed around the shaft G, with one endfastened to the collar H, and the other end passed through the shaft Gand through the inner end of the spindle F, thus securing said spindleto the shaft. On this end of the shaft G is placed a tapering metalcollar, J, against a shoulder on the shaft, and this collar is formedwith V- shaped wings e e, projecting sufficiently far beyond thecollarto enter the shoulder on the shaft, and thus hold the collar permanentlythereon. The body of the collar J is smaller in circumference than theinterior of the tapering plug D, so that when the parts are in position,as shown in Fig. 1, the wings e on the collar J alone act against theinterior of the plug D,

Around the other end of the shaft G are placed two spiral springs, K andL, one within the other. The outer spring, L, has one end fastened inthe loose collar H, while the other end is fastened in a head, M, placedon the end of the shaft G. This head has a shoulder at 2 over which isplaced a metal cap, h, to protect the wood from the wear of the springs.The inner spring, K, is arranged in such a manner as to force thespindle F outward from the roller, the head M being held stationary inthe roller by nails or otherwise, while the shaft G can turn and movelengthwise therein, one end of the said spring K bearing against thehead M and the other end against an enlargement, y, on the shaft G.

It will be noticed that the springs I and L are of unequal size, and theinner ends of both springs are attached to the loose collar H. Hence, inpulling down the curtain the smaller spring, L, will be wound tight, andthen as the curtain is pulled down still more, and of course becomesstill more heavy, the larger spring, I, is brought into play, thuscompensating for the increased weight of the curtain.

The outer end of the spindle F is formed with a collar, m, and outsideof said collar, on said spindle, is a projection, in, which fits in aslotted socket, is, on the bracket N. At the lower end of this bracketis formed a slotted arm, 0, in which is inserted abent metal plate, P,forming two arms. In the upper arm is mounted a roller, p, under whichthe curtain-cord from the pulley E is passed. The

lower arm of the plate P has a tapering slot, 8, through which the cordis passed, and can be held at any point desired.

The spindle F is held stationary in the bracket N, and the opposite endof the roller resting in the bracket 0. By pulling the curtain-cord theroller is made to rotate to unwind the curtain and wind up the springs LI. WVh en the cord is released the springs will unwind and wind up thecurtain.

The spring K holds the roller in the brackets. It can readily be removedfrom them when desired, and the tension of the springs I L regulated bypressing inward the spindle F and turning the same in either direction.The spring K then throws the collar J into the recessed plug D, when thewings c on said collar will hold the springs from unwinding byfrictional contact against the inside of said recessed plug D.

When the spindle F is placed in its bracket N, the roller must bepressed toward said bracket before the other end of the roller can enterits bracket 0 sufficiently far to clear the collar J entirely from therecess in the plug D. hen it is desired to change from a stop-curtain toa balance-curtain the pulley E is removed and any ordinary head put inits place. Ihe head B is also removed, and the head It (shown in Fig. 3)substituted. -In the outer end of this head is a circular recess, to fitover a cork washer, it, placed around the socket a on the bracket 0, tocreate a sufficient friction. The tension of the springs must also bereduced to the proper amount.

It will be noticed that the collar H, which forms a coupling for the twosprings I L, has its central bore larger than the outer circumference ofthe shaft G; hence it is thrown with greater or less force against theinside of the roller, thus creating friction to aid in holding thebalanced curtain.

It must be understood that by a stop-curtain I designate such a curtainas requires a device to stop and hold it at any desired height, whereasa balanced curtain designates one that requires no such stop to hold it.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a spring curtain-roller, the springs I L, having their inner endscoupled together by the loose collar H, in combination with the shaft Gand roller A, substantially as and for the purposes herein set forth.

2. The combination, with the roller A, shaft G, and springs I L, of thetapering recessed plug D, tapering collar J, having wings 0 arranged infrictional contact with the plug D, and the spring K, for preventing therecoil of the springs I L while inserting the roller in its brackets,substantially as herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this25th day of July, 1878.

IVALTER B. NOYES.

'itnesses J. M. MAsoN, W. T. JOHNSON.

